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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
ZWO Brand Logo

ZWO

Whether your focus is deep-sky imaging or planetary capture, ZWO (Suzhou ZhenWang Optoelectronics) has redefined modern astrophotography. At David Astro, we are a trusted Canadian authorized dealer for ZWO equipment, recognized for hands-on expertise, technical support, and an extensive in-stock inventory. With fast shipping across Canada, the USA, and worldwide, we make it easy to get the right gear quickly, so you can focus on imaging rather than waiting for equipment.

We carry the full lineup of ZWO cameras, mounts, focusers, and accessories, and our team actively uses this equipment under Canadian skies. Our goal is to help you configure and operate your system efficiently, reducing setup complexity and maximizing imaging performance.

Filters

$29.00 - $29.00
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ZWO EAF Bracket for Takahashi

ZWO-EAF-BRK-TK
2 in stock

Precision-machined for Takahashi focusers Includes both 4 mm and 5 mm flexible couplers Supports over 10 telescope models from Takahashi, Sky-Watc...

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$29.00 - $29.00
$29.00
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$29.00
$39.90 - $39.90
$39.90
$39.90 - $39.90
$39.90

ZWO EAF Hand Controller

ZWO-EAF-HC
1 in stock

Precise, tactile focus control for ZWO EAF Operate focuser without a computer or ASIAIR Variable speed for coarse and fine adjustments Ideal for v...

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$39.90 - $39.90
$39.90
$39.90 - $39.90
$39.90
$249.00 - $249.00
$249.00
$249.00 - $249.00
$249.00

ZWO EAF Pro Wireless Electronic Automatic Focuser

ZWO-EAF-PRO
1 in stock

11 lb (5kg) Payload Capacity Bluetooth 5.0 and USB-C Connectivity Integrated 2500 mAh Rechargeable Battery Stepper Motor with 128:1 Gear Ratio Hig...

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$249.00 - $249.00
$249.00
$249.00 - $249.00
$249.00
$9.90 - $9.90
$9.90
$9.90 - $9.90
$9.90

ZWO EAF Temperature Sensor

ZWO-EAF-Sensor
4 in stock

Enables temperature-based autofocus compensation for the ZWO EAF Plugs directly into the ZWO Electronic Automatic Focuser Maintains sharp focus as...

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$9.90 - $9.90
$9.90
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$9.90
$149.00 - $149.00
$149.00
$149.00 - $149.00
$149.00

ZWO EAFN Electronic Automatic Focuser

ZWO-EAFN
2 in stock

Handles imaging payloads up to 11 lbs (5kg) High-precision stepper motor with 128:1 gear ratio Single USB-C port for power and data ASCOM, INDI, a...

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$149.00 - $149.00
$149.00
$149.00 - $149.00
$149.00
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$299.00
$299.00 - $299.00
$299.00
$239.00
$239.00 - $239.00
$239.00

ZWO EFW - 7 x 36mm

ZWO-EFW-7x36-II
2 in stock

Holds seven 36mm unmounted filters Adds only 20mm of back focus to the imaging train Powered and controlled via a single USB-C cable Weighs 515g f...

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$299.00
$299.00 - $299.00
$299.00
$239.00
$239.00 - $239.00
$239.00
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$599.00 - $599.00
$599.00
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$599.00

ZWO EFW - 7 x 50mm Square Filter Wheel

ZWO EFW-7x50

Holds seven 50mm square unmounted filters Designed for large-format sensors like the ZWO ASI461MM Pro Direct bolt-on connection for maximum rigidi...

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$599.00 - $599.00
$599.00
$599.00 - $599.00
$599.00
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$299.00
$299.00 - $299.00
$299.00
$239.00
$239.00 - $239.00
$239.00

ZWO EFW - 8 x 1.25" or 31mm

ZWO-EFW-8x1.25
2 in stock

For 1.25" or 31mm filters Easy to install on the telescope and the camera Filters are easy to ins...

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$299.00
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$299.00
$239.00
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$239.00
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$199.00 - $199.00
$199.00
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$199.00

ZWO Electronic Filter Wheel EFW Gen2 - 5 x 1.25"

ZWO-EFW-5x1.25-25
1 in stock

5 filter positions for 1.25" or 31mm filters Adds 20 mm of back focus to the imaging train USB-C powered and controlled Redesigned housing for imp...

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$199.00 - $199.00
$199.00
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$199.00
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$299.00
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$299.00

ZWO Electronic Filter Wheel EFW Gen2 - 5 x 2"

ZWO-EFW-5x2-25
2 in stock

Holds 5 x 2" mounted or 50.4mm unmounted filters Adds only 20 mm of back focus to the imaging train Stepper motor for precise, repeatable filter s...

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$299.00 - $299.00
$299.00
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$399.00 - $399.00
$399.00
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$399.00

ZWO Electronic Filter Wheel EFW Gen2 - 7 x 2"

ZWO-EFW-7x2-25
2 in stock

Holds seven 2" mounted or 50.4mm unmounted filters Adds 20 mm of back focus to the imaging train Stepper motor for precise, quiet filter selection...

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$399.00 - $399.00
$399.00
$399.00 - $399.00
$399.00
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$299.00
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$299.00

ZWO Electronic Filter Wheel EFW Gen2 - 7 x 36mm

ZWO-EFW-7x36-25

Houses seven 36mm unmounted filters Adds a minimal 20mm of back focus to the imaging train 7-position carousel for LRGB, narrowband, or custom set...

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$299.00 - $299.00
$299.00
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$299.00
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$299.00
$299.00 - $299.00
$299.00

ZWO Electronic Filter Wheel EFW Gen2 - 8 x 1.25"

ZWO-EFW-8x1.25-25
1 in stock

Holds 8 x 1.25" or 31mm unmounted filters Adds 20 mm of back focus to the imaging train USB-powered stepper motor for precise filter selection Red...

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$49.00
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$49.00

ZWO EOS Lens Adapter for 2" EFW

ZWO-EFW2-EOS
1 in stock

Connects Canon EOS lenses to a ZWO 2" Electronic Filter Wheel M54x0.75 female thread for direct, secure attachment Enables filtered, wide-field as...

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ZWO EOS Lens Adapter for EFW

ZWO-EFW-EOS-II
1 in stock

Connects Canon EOS lenses to ZWO Electronic Filter Wheels (EFW) Engineered for ZWO cameras with 6.5mm back focus (e.g., ASI1600) Establishes the c...

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$49.00
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$49.00
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$349.00
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$349.00
$309.00
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$309.00

ZWO FF107/FF130 APO 0.7× Universal Reducer

ZWO-F107130RE

0.7x Focal Reduction Factor Designed for ZWO FF107 & FF130 APO Refractors Triplet Optical Design with 1 ED Element Standard 55mm Back Focus In...

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$349.00
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$349.00
$309.00
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ZWO FF110-APO 110mm Quadruplet Refractor F/7.0

ZWO-FF110-APO
1 in stock

90mm Aperture 766mm Focal Length (f/7) 4-Element Apochromatic Optics Integrated Field Flattener 3-inch Dual-Speed Focuser 14.9 lb. Optical Tube We...

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$1,499.00 - $1,499.00
$1,499.00
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$1,999.00 - $1,999.00
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ZWO FF131-APO 131mm Quadruplet Refractor F/7.5

ZWO-FF131-APO

131mm Aperture 983mm Focal Length (f/7.5) 4-Element Petzval Optical Design 3-inch Dual-Speed Rack & Pinion Focuser 20.7 lb. Optical Tube Assem...

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$1,999.00 - $1,999.00
$1,999.00
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$199.00 - $199.00
$199.00
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$199.00

ZWO FF65 APO 0.75× Full Frame Reducer

ZWO-F65RE
Only 1 left!

Reduces FF65 APO focal ratio to f/4.8 0.75x reduction factor for wider fields of view Standard 55mm back focus from the M48 thread Integrated M48x...

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$199.00 - $199.00
$199.00
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$199.00
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$599.00
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$599.00

ZWO FF70-APO 70mm Quadruplet Refractor F/7.0

ZWO-FF70-APO
1 in stock

70mm Aperture 490mm Focal Length (f/7) 4-Element Quadruplet Optical Design Integrated Field Flattener 2.4" Dual-Speed Rack & Pinion Focuser 6....

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$599.00 - $599.00
$599.00
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$249.00 - $249.00
$249.00
$249.00 - $249.00
$249.00

ZWO FF80 APO 0.76× Full Frame Reducer

ZWO-F80RE
Only 1 left!

0.76x focal reduction factor Designed for the ZWO FF80-APO Refractor Triplet optical design with one ED element Standard 55 mm back focus Integrat...

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$249.00 - $249.00
$249.00
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$249.00
$999.00 - $999.00
$999.00
$999.00 - $999.00
$999.00

ZWO FF90-APO 90mm Quadruplet Refractor F/6.8

ZWO-FF90-APO
1 in stock

90mm Aperture 609mm Focal Length (f/6.8) 4-Element Quadruplet Optical Design 3" Dual-Speed Rack & Pinion Focuser 9.97 lb. Optical Tube Assembl...

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$999.00 - $999.00
$999.00
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$999.00
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$99.00
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$99.00

ZWO Filter Drawer for EOS Lens

ZWO-FD-EOS
1 in stock

Connects Canon EOS lenses to ZWO ASI cameras Accepts standard 2" mounted filters Magnetic holder for secure, fast filter changes Adds 26.5mm of op...

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$99.00 - $99.00
$99.00
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$99.00
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$99.00
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$99.00

ZWO Filter Drawer for Nikon Lens

ZWO-FD-NIKON
1 in stock

Adapts Nikon lenses to ZWO ASI cooled cameras Accepts standard 2-inch (M48x0.75 thread) mounted filters Ultra-thin 29 mm profile maintains focus I...

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$99.00 - $99.00
$99.00
$99.00 - $99.00
$99.00

The ZWO Ecosystem: Integrated Imaging

ZWO’s strength lies in its ecosystem approach. Cameras, mounts, focusers, filter wheels, rotators, and software are designed to operate as a single, cohesive system, controlled via the ASIAIR smart controller. That means fewer driver conflicts, simpler cable management, and an automation workflow that runs from your phone or tablet — without a dedicated laptop at the mount.

  • ASIAIR Series (Plus, Mini): Centralized control for automation and imaging management.
  • ASI Cameras: High-performance cooled and uncooled CMOS sensors for deep-sky, planetary, lunar, and solar imaging.
  • EAF (Electronic Automatic Focuser): Maintains precise focus throughout extended sessions.
  • EFW (Electronic Filter Wheel): Enables automated filter switching for LRGB and narrowband imaging.
  • ZWO AM Series Mounts (AM3N, AM5N, AM7): Compact, high-torque harmonic drive mounts for stable tracking.
  • CAA (Camera Angle Adjuster): Rotate precisely for framing, composition, and off-axis guiding optimization.

Why Choose David Astro for ZWO?

Buying ZWO equipment is an investment in both hardware and workflow. David Astro is more than a retailer; we provide expert guidance, technical support, and reliable service. As a trusted Canadian source for ZWO, we offer:

  • Authorized Retailer: Full manufacturer warranty and verified authenticity on all ZWO products.
  • In-stock Inventory: Large selection of cameras, mounts, and accessories ready for immediate shipment from Canada.
  • Expert Guidance: Specialized support for building your complete imaging train, including sensor selection and back-focus calculations.
  • Repair & Service: In-house support and diagnostics for ZWO equipment, reducing downtime and simplifying after-sales support.
  • Fast Shipping: Reliable delivery across Canada, the USA, and worldwide with no hidden import fees for Canadian customers.

From component selection to system calibration or image processing, we support every stage of your astrophotography workflow.

ZWO Canada — Frequently Asked Questions

Is the warranty the same as buying from the manufacturer?
Yes, you receive the full ZWO manufacturer warranty. By purchasing through David Astro, your warranty and any necessary repairs are handled domestically in Canada, eliminating the need for international shipping and customs paperwork.
Are all items shipped from within Canada?
Yes. All items marked as in stock are held in our Canadian inventory. This ensures that Canadian buyers do not face surprise duties or brokerage fees upon delivery.
Can you help with system compatibility?
Yes. We regularly help customers calculate back-focus distances and select the correct adapters to ensure their ZWO imaging train works perfectly with their specific telescope and reducer.

Ready to build your ZWO system?

In-stock inventory, Canadian warranty, and expert support. Ships from Canada. Contact us for guidance!